Gallatin Field Airport, also known as Bozeman Yellowstone International Airport, is a public airport located in Belgrade, Montana, United States. It serves the city of Bozeman and the surrounding area, including Yellowstone National Park, Big Sky Resort, and the Gallatin Valley. The airport is the busiest in Montana and has seen significant growth in recent years due to the increasing popularity of the region as a tourist destination and the growth of Bozeman as a tech hub.

Gallatin Field Airport covers an area of 2,481 acres and has three runways. The main runway, Runway 12/30, is 9,000 feet long and can accommodate large commercial aircraft such as Boeing 737s and Airbus A320s. The airport is served by four major airlines – Delta, United, Alaska, and American – which offer flights to major hubs such as Denver, Minneapolis, Salt Lake City, and Seattle. In addition to commercial passenger service, the airport also handles general aviation, military, and cargo operations.

The airport's passenger terminal was recently renovated and expanded to accommodate the growing number of travelers passing through the airport. The terminal features modern amenities such as restaurants, shops, and free Wi-Fi. The airport also has a conference room and business center for travelers who need to work while waiting for their flights. Other services offered at the airport include car rental, ground transportation, and parking facilities.

Gallatin Field Airport plays a vital role in the economy of the region by connecting Bozeman and the surrounding area to the rest of the country and the world. The airport serves as a gateway for tourists visiting Yellowstone National Park, one of the most popular national parks in the United States. It also provides easy access to Big Sky Resort, one of the largest ski resorts in North America, and the Gallatin Valley, which is known for its outdoor recreational opportunities such as hiking, fishing, and hunting.

In recent years, Bozeman has emerged as a major tech hub, attracting companies such as Oracle, VMware, and Workiva to the area. The airport has played a key role in supporting the growth of the tech industry in Bozeman by providing convenient air travel options for business travelers. In addition, the airport has helped boost tourism in the region by making it easier for visitors to access the area's natural attractions and outdoor recreational opportunities.

Overall, Gallatin Field Airport is a vital transportation hub for the city of Bozeman and the surrounding area. It connects the region to the rest of the country and the world, supporting tourism, business, and economic development. The airport's modern facilities and efficient operations make it a convenient and welcoming gateway for travelers visiting the area. As Bozeman continues to grow and attract more visitors and businesses, Gallatin Field Airport will play an increasingly important role in supporting the region's continued prosperity and success.